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N. L-OMBARD. OIRGULAR WEAVING MACHINE.

No. 494,107. Patented Mar. 21 1893.

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Patented Mar. 21, -1893.

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N. LOMBARD. CIRCULAR WBAVING MACHINE,

No 494,107. Patented Mar. 21, 1893.

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No. 494,107. Patented Mar. 21, 1893.

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N. LOMBARD. CIRCULAR WEAVING MACHINE.

No. 494,107. Patented Mar. 21, 1893.

I NTDFK UNrTE STATES PATENT Onrrcn.

NATHANIEL LOMBARD, OF BOSTON, MASSACHUSETTS, ASSIGNOR TO HENRY A. CLARK,OF SAME PLACE.

ClRCULAR-WEAVING MACHINE.

SPECIFIGATION forming part of Letters Patent No. 494,107, dated March21, 1893.

Application filed May 11, 1892.

To all whom it may concern: 1 Be it known that I, NATHANIEL LOMBARD, ofBoston, in the county of Suffolk and State of Massachusetts, haveinvented certain new and useful Improvements in Circular-WeavingMachines, of which the following is a full, clear, and exactdescription.

This invention relates to a machine for weaving circular tubing fromfibrous material and to more especially for weaving the same upon anelectric wire or electric cable, although applicable as well to weave acovering for hose and other purposes, and the invention consists of amachine for weaving circular tubing I 5 from fibrous material, allconstructed and arranged for operation substantially as hereinafterfully described and shown, reference being had to the accompanyingsheets of drawings in which is represented a machine for weavingcircular tubing from fibrous material constructed in accordance withthis invention.

Figure 1,representsthe machine in front elevation. Fig. 2, is a planview. Fig. 3, is a central vertical section on line 33, Fig. 2. Fig. l,is a plan view below section line 44, Fig. 3. Fig. 5, is a detail crosssection on line 55, Fig. 4. Fig. 6, is a detail under plan view ofFig. 1. Fig. 7, is a plan view below line 77, Fig. 3. Fig. 8, is adetail elevation to be hereinafter referred to. Fig. 9, is a detail planview to be hereinafter referred to. Fig. 10, is a detail verticalsection on line 10-10, Fig. 8. 5 In the drawings A represents a basehaving legs B, by which to secure it on a suitable bench or rest, thebase having bearings O, C, in which is arranged to turn a horizontalshaft D having on its outer end a pulley E for operation of the shaftbya belt F and on its inner end a vertical miter gear G. This miter gearG engages with a horizontal miter gear H secured to a vertical tubularshaft J which is adapted to turn in an upright tubular post K and thebase A, the post being secured at a, in the base as shown in Fig. 3, orin any suitable manner, or it can be integral therewith. To the upperend of the tubular post is secured a horizontal circular plate L, by itsflange M by which said plate is supported,

Serial No. 432,628. (No model.)

and N is another horizontal circular plate below and secured to theupper plate L by vertical rods P, secured by bolts, there being four ofsuch rods in the present instance.

Secured by a set screw d, to the upper end 5 5 of the tubular verticalshaft J is a horizontal gear Q which engages with four smaller gears R,at regular distances apart, three ofwhich small gears are adapted/toturn upon journals e, formed by the upward extension of three of thevertical rods or posts P, to the upper ends of which journals is secureda circular plate S just above the small gears R. The gear Q and itssmall gears R are disposed in a central recess or depression T in theupper 5 5 side of the plate L. One, f, of the postsis hollow having acentral vertical passage g, through it, through which extends a shaft Uto which shaft the other one h of said gears is secured, the shaftextending down through the plate N and having secured to its lower end asmall gear V below the plate N which engages with a horizontal geanmturning on a journal n, secured to the underside of the plate, whichgear m engages with a larger gear W adapted to turn in a central opening1' in the plate N and about and around the central tubular post K as ahearing. The flat outer portion Y of the recessed plate L on its upperside has a horizontal circular groove A concentric with the tubularshaft J, formed by inwardly extending lips t, u, the one t, by

a portion of the plate andthe otheru by blocks B secured by screws orbolts o, to the plate, in which groove is adapted to fitacorrespondingly shaped tongue 0 on the under side of a plate or block'Dwhich is in the form of a segment of a fiat ring or rim, and whichsupports and carries a bobbin, the plate being ari ranged to freelytravel around in the groove 0 and prevented from escape therefrom by thelips. There are two of'these carrier plates, diametrically opposite toeach other as shown in Fig. 7, and the inner edge of each has aninternal gear E which is adapted to engage 5 with the four small gearsR, each plate being of a length for its internal gear to extend from thecenter line of one gear R to the center line of the next or adjacentgear B, so thatthe movement of each carrier plate in the cirroe culargroove A will be made continuous by the engagement of its internal gearwith the small gears, one after another.

Screwing into the center of the gear Q engaging with-the bobbin carrierplate gears R and passing freely through plate S is a vertical tubularrod F which although independent of the vertical tubular shaft J formspractically a continuation of the same, so that there is a verticalcentral passage G which extends through the rod and the tubular shaft Jand through the base as shown in section in Fig. 3. Up through thispassage G in the operation of the machine the electric wire or cable, orhose, or other article travels to be covered with the circular wovenfabric.

H are thelowerorstationary bobbins which are secured in suitableposition preferably in the form of a circle below the machine on thebench supporting the machine, or on any suitable support, each carryinga thread 0. making the warp thread, and J are the upper bobbins, one toeach bobbin carrier plate and carrying a thread 1) making the woofthreads.

K is a series of radial bars, preferably square in cross section, equalin number to one half of the warp thread bobbins of which, in thepresent machine there are twenty, and each is adapted to move freelyforward and back radially in slots at in two sets of circular ribs esecured to or forming part of the plate N, the bars being secured fromaccidental dctachment, by screws 7).

On the under side of the inner end of each bar Kis a downwardlyextending pin or projectionf which pins are freely disposed in acircular groove L in the upper side of the gear W which circular grooveis eccentric to the central tube J, as shown more particularly in Fig. 4in plan. Each bar K has an extension wire g its end It being bentupwardly at right angles and is disposed in a socket m in one end of ahorizontal lever M centrally pivoted at n near the outer edge of theplate N. Each of these horizontal pivoted levers M has in each end ahole 25 through which extends a warp thread a from one of the lowerbobbins H as shown more particularly in Fig. 2. In line vertically withand below each hole 25 in the end of these levers M is an open radialslot N in the edge of the plate N which slots leave room for the Warpthreads to move in the.operation of the machine.

' Secured by screws 0" to the upper side of each bobbin carrier plateisa switch plate Q made of sheet metal having a pointed end to and its twoedges extending back therefrom in two circular lines concentric with thetubular shaft J, as shown in plan in Figs. 2 and 9.

Each carrier plate has secured to it by screws 15" above the switchplate Q an upright arm R, which consists of a flat tapering strip ithaving on its outer side a central rib o to stiffen it, the arm lying inan inclined direction toward, and hearing by its upper end close againstthe tubular rod F.

Attached to theinclined arm R or nearits top is another switch plate Sbut quite small or short, having a pointed end '0 and its edges beingcircular, as shown and a short distance below this upper switch plate Sis another switch plate T but larger having a pointed end to, thepointed ends of the three switch plates being substantially in the sameinclined line. The upper end of each of these bobbin carrier arms has avertical passage a at one side, through which passes a woof thread I)and its upper edge b above such passage extends therefrom slightlyrising, as shown in Fig.8, and it is hollow or concave in cross sectionas shown at d in Fig. 10.

The bobbin J is attached to a plate 0 secured to the switch plate at eand it is bent upward at an angle for the bobbin to lie in an inclineddirection inwardly toward the rod F to be substantially in the sameinclined direction as the arm R, as shown in Fig. 3.

Each bobbin of the warp threads and woof threads has the usual weightand tension arran gement for the proper delivery of its thread and theyare all constructed and arranged as usual in braiding machines, todeliver and keep the proper tension on the threads, and as the bobbinsand their adjustment can be of any suitable construction and being nopart of this invention it is not deemed necessary to herein particularlydescribe such.

The operation of the machine is as follows:- Each warp thread a from alower bobbin is passed up through an eye hole t in the pivoted lever Mlying in the slotN. From thence they all pass upward through separateradial slots f in the upper plate L between the blocks 13 to a pointnear the upper end of the tubular rod F where they are all heldtemporarily in any suitable manner more or less taut together. Theblocks B are separated sufficiently to leave a narrow space between themover each radial slot to allow free passage for the warp'threads. Thethread from each shuttle bobbin J passes up through holes g in the twoswitch plates S,T and then through the hole a in the upper end of thearm R lying in the groove d, in such end, and in starting the machinesuch threads are held by hand until the machine has made one or morerevolutions when it carries them along itself. Turning the pulley in theright direction the miter gear H is revolved in the direction of thearrow Fig. 1, which turns the tubular shaft J and its gearQ in the samedirection,(see arrow 10"Fig. 7,) turningthe small gears R in the reversedirection which correspondingly causes by their connection with theinternal gears E of the bobbin carrier plates D, the carrier plates totravel along their circular raceway A in the direction of the arrow h",Figs. 2, and 7. The gear W by its gear connection with the tubular shaftU, is turned in the opposite direction to the gear Q, carrying theeccentric cam groove L inthe same direction, see arrow Fig. 4, which camgroove causes the radial bars K to move radially forward and backward intheir guide slots and in such movements their respective pivoted leversM are swung on their pivots, alternately moving each arm outward andinward, and in such movements alternately moving outward and inwardtheir respective warp threads 11 so that as the pointed end u of aswitch plate Q of a bobbin carrier plate arrives at such threads itpasses between the two, carrying with it the woof thread I) of itsbobbin, which is carried round the upper part of the tubular rod F andis woven in and outwith the warp threads. In Fig. 9, are shown in theirrelative positions in plan view the two switch plates Q, the bobbinbeing removed and the vertical arms R in cross section the warp threadsalso being in cross section and bearing against the two edges 0/ b ofthe switch plates, and opened or separated from each other forming theshed vthrough which its respective bobbin is carried, and as they sotravel each passes between each two warp threads of each pivoted lever,one

after another. At the same time the eccentric groove L moves round andcauses the radial bars K to gradually move in a direction to swing theirpivoted levers M so as to move the warp threads connected therewith, forthe outer one of each two, to be moved inward, and the inner one of eachtwo to be moved outward, so that as the next bobbin carrier plate andits bobbin come round they will pass between each two warp threads, butthe reverse from the other, so that as the warp and woof threads arewoven together at the upper end of the tubular rod, each warp threadwill alternately be outside of and inside of the, woof threads by whichthe warp and woof threads will be woven together in a similar manner tothat in which cloth is woven, ex-v cept in the present machine two woofthreads are used and the shed is operated so that each woof threadpasses alternately in front and back of a warp thread in each revolutionor passage around the machine. The warp threads as they-leave the rearend of each switch plate pass as follows: the inner threads on to theouter curved edge, and the outer threads on to the inner curved edge ofthe next switch plate one after the other. The levers M acted upon bythe radially moving bars K from the movement of the cam groove L causethe warp threads to separate or open from each other laterallysufficiently for the ends of each switch plate Q to enter between themto form the proper sheds, and to still further insure that the threadsshall open from each other at the upper part the switch plates S and Tare added to act upon the upper portions of the threads so that with thethree switch plates attached to the bobbin carrier plate and its arm,the warp threads will be fully opened or separated from each other forthat carrier plate its arm and bobbin to freely pass between and notinterfere with'the warp threads. As the woof thread leaves the carrierarm the upward incline b of its upper end lays it closely up against thewoof thread just above acting somewhat as the frame in a loom and alsoas a feed to the circular tube, as it is woven in themachine; it is wellhowever to have the woven tube as it leaves the rod secured to a devicewhich will assist the feed and pull it upwardas fast as it is woven. Theshed ofthe warp threads for the woof threads is thus made alternatelyby. the movements of the pivoted levers M caused by the turning of theeccentric groove operating upon its connecting bars K in the operationof the machine. If an electric wire or cable or hose or any desiredarticle is to be covered with the woven .circular tube it is passed upthrough the central passage G and I fed through the same by any suitablefeeding device and with the speed required, so that as it emerges fromthe upper end of the tube the threads will be woven upon it as fast asit travels upward, the speed of the movement of the wire being governedby the speed in which the tube is woven, and the closeness in which itis desired for thethreads to lie upon thewire &c.

U is a horizontal plate rigidly secured by screws to the circular plateS and having V shaped openings at" in its edge at certain intervalsapart, respectively radially opposite to the open slots N in plate N asshown in Fig. 2 more particularly, into which openings the warp threadsrespectively pass as they are moved backward by the levers to steadythem somewhat laterally, to facilitate the passage of the bobbin carrierplate and parts between them. The gear W is cut away on its upper sidearound its edge for such portion to fit in the central opening 7', inthe plate N as shown more particularly in Figs. 3 and 4. The pivotedlevers M serve to separate the warp threads sufficiently to be inposition for the pointed end of the switch plate to enter between themto still further separate them for the bobbin and other parts to freelypass between them.

Having thus described my invention, what I claim is I 1 1. In a circularweaving machine in combination, a revolving plate havinga circulareccentric groove, radial arms extending therefrom adapted to engage withsaid groove and to slide back and forth in suitable guideways, andlevers pivoted to a support and each connected to a radial arm andhaving holes or openings diametrically opposite to each other througheach of which holes or openings a warp thread passes.

2. In a circular weaving machine in combination, a vertical tubularrevolving shaft, a gear on the upper end of said tubular shaft, a seriesof gears engaging with said gear, and a bobbin carrier plate adapted totravel in a circular raceway and having a segment of an internal gearadapted to engage with said gears, a vertical shaft on one of saidseries of gears, another gear on said shaft, a revolving gear, radialarms extending therefrom and engaging with said groove and adapted toslide back and forth in suitable guideways and levers pivoted to asupport and each connected to'a radial arm and having holes or openingsdiametrically opposite to each other, through each of which holes oropenings a warp thread passes.

3. In a circular weaving machine, abobbin carrier plate adapted totravel in a circular raceway having attached thereto a switch platehaving a pointed end, an inclined arm, a smaller pointed switch plate atits upper end and an intermediate pointed switch plate secured to saidarm, said arm at its upper end having an eye or passage and its uppersurface having a longitudinal groove and eX- tending in an inclineddirection for the passage of a woof thread.

4. In a circular weaving machine, in combination a central revolvinggear, a vertical revolving shaft, a gear on said shaft engaging withsaid central gear another gear on said shaft, another central gearengaging with said other shaft gear, said last named central gear havingan eccentric groove in its upper surface, radial arms engaging with saideccentric groove and extending therefrom and adapted to slide back andforth in suitable guideways and levers pivoted to a support eachconnected to a radial arm and having holes or openings diametricallyopposite to each other through each of which holes or openings awarpthread passes.

5. In a circular weaving machine in combination, a revolving gear, aseries of gears engaging with said gear, a bobbin carrier plate adaptedto travel in a circular raceway and having a segment of an internal gearadapted to engage with said series of'gears, avertical shaft on one ofsaid series of gears, another gear on said shaft, another central gearengaging withsaid other shaft gear and having an eccentric groove in itsside, radial arms extending from and adapted to engage with said grooveand adapted to slide back and forth in suitable guideways, leverspivoted to a support, each connected to a radial arm and having holes oropenings diametrically opposite to each other through each of whichholes or openings a warp thread passes.

6. In a circular weaving machine, a bobbin carrier plate adapted totravel in a circular raceway having attached thereto a switch platehaving a pointed end, an inclined arm, a smaller pointed switch plate atits upper end and anintermediate pointed switch plate secured to saidarm, said arm at its upper end having an eye or passage for a woofthread to pass through it.

7. In a circular weaving machine,a bobbin carrier plate adapted totravel in a circular raceway having attached thereto a switch platehaving a point-ed end, an inclined arm,

a smaller pointed switch plate at its upper end and an intermediatepointed switch plate secured to said arm,the upper end of the arm beinginclined.

8. In a circular weaving machine, a bobbin carrier plate adapted totravel in a circular raceway having attached thereto a switch platehaving a pointed end, an inclined arm, a smaller pointed switch plate atits upper end and an intermediate pointed switch plate secured to saidarm, said arm at its upper end or edge being inclined and grooved alongits length In testimony whereof I have hereunto set my hand in thepresence of two subscribing witnesses.

NATHANIEL LOMBARD.

Witnesses:

EDWIN W. BROWN, CARRIE E. NIoHoLs.

